After years in the doldrums, the housing market appears back on track. Home sales and prices are up, and mortgage rates remain near historic lows, reinvigorating the appeal of homeownership.

But qualifying for a home loan remains a hurdle for anyone without a solid personal balance sheet.

"Now the requirements are much stricter," says Erin Baehr, a certified financial planner in Stroudsburg, Penn. "You have to have the right income, you have to have the right credit score and you have to have the right down payment to get the best rates out there."

In addition, a tight supply of homes for sale in many markets means sellers often have the leverage that comes with receiving competing offers. That means buyers with the financial flexibility to raise their offer stand a better chance of winning out — another reason to bolster one's finances before entering the homebuying fray.

Here are six tips to get financially prepared to purchase a home:

1. ASSESS YOUR FINANCIAL PICTURE AND HOW MUCH HOUSE YOU CAN AFFORD

Before you get too involved in looking at listings, take some time to evaluate your finances thoroughly. If you're a first-time buyer and haven't been saving money or have been living paycheck-to-paycheck while dealing with college loans and other debt, you'll likely have to make major lifestyle changes to get in the best position to buy a home.

Ultimately, you want to get an idea of how much of your monthly income you can reasonably afford to spend on a home.

Stew Larsen, head of Bank of the West's mortgage banking division, suggests using a rough formula that lenders use: Add up the monthly house payment — principal, interest, taxes and insurance — and subtract it from your gross monthly income. The house payment shouldn't be more than 28 percent to 30 percent of the monthly income.

Bankrate Inc. has online calculators that can help estimate how much you can afford based on your income and expenses. Here's one: http://apne.ws/12bNGkc .

2. BUDGET LIKE YOU'RE ALREADY A HOMEOWNER

You've figured out roughly how much money you should devote to housing. But can you actually live on that amount, especially when you consider other costs, such as repairs, utilities, which often run higher than in apartments, and if you live in a condominium, homeowner association fees?

Baehr recommends renters calculate the extra monthly costs that come with homeownership and start setting aside that amount. This accomplishes two goals: Saving money for a down payment and getting them accustomed to the financial constraints of homeownership.

"Start to put that money away and see if you can live without it," Baehr says. "If you can't do it now, you're not going to be able to do it later."

3. SHOOT FOR 20 PERCENT DOWN

While some loan programs allow homebuyers to make a down payment of as little as 3.5 percent of the purchase price, experts say you'll need to save enough for at least a 20 percent down payment in order to get the lowest interest rate and avoid having to pay private mortgage insurance, or PMI.

If you're a military veteran, you can qualify for a loan program that enables veterans to obtain a mortgage without a down payment.

Even if you end up getting a loan that requires private mortgage insurance, once you've made enough payments to build your stake in the home to 20 percent, you can apply to have PMI waived. And until then, PMI is tax-deductible.

In addition to a down payment, you'll also have to set money aside for closing costs, which can run into the hundreds or sometimes thousands of dollars.

4. TACKLE ANY CREDIT SCORE PROBLEMS EARLY

A person's credit score is a critical element of how lenders determine how much money homebuyers can borrow and at what interest rate.

Baehr says buyers seeking a shot at the most favorable interest rate on a home loan must generally have a FICO score of at least 720 out of 850. Loans backed by the Federal Housing Administration require a FICO score of at least 580, but you'll pay a higher interest rate.

Prospective homebuyers should check their credit report for any errors that may be weighing down their credit score. Disputing errors can take months, so it's best to get this process going well before you'd like to buy a home. Baehr recommends getting started six months in advance.

A major component of one's credit score is the ratio between how much credit you have available versus how much debt you're carrying. You can improve your credit score by paying down debt over time, another reason to get started well before you apply for a mortgage.

Consumers are entitled to a free credit report every 12 months from each of the credit bureaus: Experian, TransUnion and Equifax. You can get copies at www.annualcreditreport.com .

In addition, avoid taking on new debt in the months before you set out to buy a home, as new loans or credit cards can ding your credit score temporarily.

Even borrowers who like to use their credit cards often and pay down the balance every month should refrain or ease back on using credit cards for a couple of months before applying for a home loan, Baehr says.

5. GET FINANCIAL DOCUMENTS IN ORDER

When it comes time to formally apply for the loan, lenders will probe deep into your financial records.

Get ahead of the requests by pulling together at least three months of bank statements, pay stubs, and at least two years of income tax filings.

If you're going to be receiving financial help from family on the down payment, the bank will want to know the source. That might mean that your benefactor may also need to show bank statements related to their financial gift to you as well, Baehr said.

6. GET PRE-APPROVED FOR A LOAN

Before you begin your home search, ask a lender to assess how much you can borrow. Once the lender issues you a pre-approval letter, it's a solid indication of what you can spend.

"It's not like having cash in hand, but it's almost as close," Larsen says.

One caveat: Understand the difference between a preapproval letter and being prequalified for a loan.

Being prequalified for a loan doesn't commit the lender. It's basically an opinion drawn from a cursory assessment of your financial profile. A preapproval letter is preceded by a thorough credit and income review, though the loan won't go through until all of the borrower's financial information is verified.